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Evgen [1.6K]
3 years ago
14

How do i find the value of a variable?

Mathematics
1 answer:
photoshop1234 [79]3 years ago
5 0

To find the value of a variable you must know the basics of pre-Algebra.


Example:


2x+9=39


To find he answer of this you must subtract 9 from both sides

Then you are left with…


2x=30

Since 2x=30 means 2 times x equals 30

You can divide 2 from both sides to find the answer

Which is…

x=15



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CORRECT ANSWER GETS BRAINLIEST
kati45 [8]

Answer:

2.5

Step-by-step explanation:

t = 0.25d^{1/2}

Substitute d with 100

t = 0.25 x (100^{1/2})

A number to the half power is equal to the square root of a number.

Square root of 100 is 10: \sqrt{100} = 10

t = 0.25*10

t = 2.5

Hope this helps :)

Have an awesome day!

7 0
2 years ago
8 circles and 10 triangles.
madreJ [45]

Answer:

2:5

Step-by-step explanation:

Because if we look 8:20 can be turned into 8/20 and if we simply we got 2/5 and turn it into 2:5

8 0
3 years ago
Suppose z is proportional to the square root of x. If z = 717 when x = 9, find the proportionality constant k.??
Dahasolnce [82]

Answer:

  239

Step-by-step explanation:

Write the equation. Fill in the given values, and solve for the unknown,

  z = k√x

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The constant of proportionality is 239.

8 0
2 years ago
Read 2 more answers
What is the value of x?
Nikitich [7]

(x + 1)·(x + 1 + 11) = (x + 4)·(x + 4 + 1) --> x = 2

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7 0
3 years ago
Which of the following options have the same value as 60% of 94?
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Answer:

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4 0
3 years ago
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